257 / | HD | ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) |
213 | DF | FIELD EFFECT DEVICE {6} |
215 | DF | .~ Charge transfer device {11} |
235 | DF | .~.~ Electrical input {2} |
238 | .~.~.~ Input signal responsive to signal charge in charge transfer device (e.g., regeneration or feedback) |